Nickel biosorption by discharged biomass from wastewater treatment bioreactor: size plays a key role

Verfasser / Beitragende:
[Dandan Zhou, Yang Yang, Yunbao Li, Zhengxue Xu, Shanshan Dong]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/6(2015-03-01), 2829-2838
Format:
Artikel (online)
ID: 605499179
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024 7 0 |a 10.1007/s00253-014-6149-x  |2 doi 
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245 0 0 |a Nickel biosorption by discharged biomass from wastewater treatment bioreactor: size plays a key role  |h [Elektronische Daten]  |c [Dandan Zhou, Yang Yang, Yunbao Li, Zhengxue Xu, Shanshan Dong] 
520 3 |a Biomass size significantly affects the characteristics of the extracellular polymeric substances, which in turn influences the biosorption mechanisms. In this work, nickel biosorption mechanisms and the capacity of excess aerobic granules (AGs) of >850μm, 500-850μm, 212-500μm, and bioflocs <212μm, discharged during wastewater treatment operation, were investigated by elemental composition and spectroscopic analysis. Ni2+ biosorption capacity decreased apparently from 1.28-1.53 to 0.93mEq/g with the increase of biomass size from 0-850 to >850μm due to their different biosorption mechanisms. Chemical binding between nickel and protein was dominant for biomass less than 850μm, whereas nickel adsorption was mainly physical when biogranule size was greater than 850μm, because the nickel had no opportunity to interact with protein located in the core of the biogranule. Only low levels of ion exchange (<15.22%) and precipitation (negligible) were observed for all kinds of biomass. Thus, biomass greater and less than 850μm presented quite different biosorption mechanisms. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Biomass  |2 nationallicence 
690 7 |a Aerobic granules  |2 nationallicence 
690 7 |a Size  |2 nationallicence 
690 7 |a Nickel  |2 nationallicence 
690 7 |a Biosorption  |2 nationallicence 
700 1 |a Zhou  |D Dandan  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
700 1 |a Yang  |D Yang  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
700 1 |a Li  |D Yunbao  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
700 1 |a Xu  |D Zhengxue  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
700 1 |a Dong  |D Shanshan  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/6(2015-03-01), 2829-2838  |x 0175-7598  |q 99:6<2829  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-014-6149-x  |q text/html  |z Onlinezugriff via DOI 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhou  |D Dandan  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Yang  |D Yang  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Yunbao  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Xu  |D Zhengxue  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dong  |D Shanshan  |u Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, 130021, Changchun, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/6(2015-03-01), 2829-2838  |x 0175-7598  |q 99:6<2829  |1 2015  |2 99  |o 253